Molding machine



Jan. l, 1924 l1,479,287

.1. W. DEARSLEY MOLDING MACHINE v Filed Dec. l2. 1921 2 Sheets-Sheet 1 va/z @an www wfg Jan. 1, 1924 1,479,287 J. w. DEARSLEY MOLDING MACHINEFiled Dec. l2. 1921 2 Sheets-Sheet 2\ Cil Patented dan. 1, 1924.

orties.

JOHN W. DEARSLEY, OF RACINE, WISCONSIN.

MoLDrNG MACHINE.

Application led December 12, 1921. Serial No. 521,751.

T 0 all whom 'it may concern.'

Be it known that I, JOHN WV. DnAnsLnY,

a citizen of the United States, and resident of Racine, in the county ofRacine` and State of Wisconsin, have invented certain new and usefulImprovements in Molding Machines; and I do hereby declare that thefollowing is a full, clear, and exact description thereof. Y

The invention relates to a molding machine and methods for moldingsheaves and similar objects, either `as entire annuli or segrnents.

itherto the manufacture ofY objects, such as sheaves and rims, has beenattained with considerable difficulty.

The invention has, as its object, the facilitating of the manufacture ofsheaves, rims, etc., which may be of acrescent or like shape in crosssection. Up to the present diliiculty has been experienced in mak-y ingpatterns for objects of this nature, and in removing the patterns fromthe sand. Again, the processes employed are laborious and slow.

The invention contemplates the provision of a three part flask. A platewith a portion of a pattern rigid or integral therewith is providedto'cooperate with the cope or drag which are placed thereon successivelyto produce in the sand-packed in said cope or drag, a desiredindentation conforming to the outline of the sheave it is desired tomake. The molds made in the cope Vand drag are identical.

Means are provided for forming sand upon a cheek in such manner as toproduce a shape that lits in with the outer surface of the sheave thatis beingV made so that the cope, cheek and drag may be assembled andproduce a complete mold of the sheave. In forming the sand on the cheek,the cheek is positioned upon a pattern member, the lower surfaces of thecheek being especially shaped to rest snugly upon the'upperA surfaces ofthe pattern member, and a: ring is placed on the pattern member andsecured rigidly in position. The sand is then packed in among the cheek,the pattern'member and the ring, and a pivoted strike is swung along theupper surface of the cheek and the sand shaped properly, the excessbeingremoved. This sand is subjected to the customary hardeningprocessesand the cheek is then ready for reception in the flask.

YObjects of the invention are rapidity and ease of operation, simplicityof the parts V of the machine, readiness of manufacturel of the machineand superiority of operation of the device, the castings being uniformlyexcellent. Y Y Y y Other objects and advantages will appear as thedescription proceeds.

Reference is had to the accompanying drawings, in which Figure 1 is aplan of the cope, a part being broken away. Y l

Figure2is a cross section on the line 2--2 ofFigure 1 of the flask.

Figure 3 is a cross sectionthrough the cope and pattern plate.

Figure' 4 is a plan of the cheek and such parts of the machine ascooperate therewith for forming the outer face ofthe mold. e Y

Figure 5 is a central vertical section thru the cheek and pattern platein assembled position. l e

The same reference characters refer to the same parts throughout thefigures.

The shape ,of the complete `mold 10 is shown in 'Figure V2.V Theinvention contemplates considerable -variation of thisY 'tern plate.Thisr serves to give strength but does not add excessively to theweight.

In Figure 3, the cope is shown positioned onthe pattern plate. Cope 17and drag 18l are substantially similar in shape. Ver-- tical walls 19and 20 rigid with each other are provided inthe cope 17, from the outersurface of wall 20, a horizontal surface21 on brace 22 is directed for adistance, thenV a surface arcuate in shape is upwardly directed to wall19. When the copev is assembled with respect to pattern plate 12, asshown in- Figure 3, sand is packed in between ybraces 22 of the cope andacquires the shape shown in Figure 2. Handles 23 rigid withthe cope arepro` vided to facilitatehandling, and lugs 24 are .v Y

' sembling of the parts of the ask.

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It is apparent that the shape of the pattern platefis'suclrasfto providetortheinpj' per, loiverfand innerifaces oithe mold! In? Figure 5 isshown the machine for Vmaking` the outer face thereoi- .A Y pattern.-member 26 is provided, having suitable supports 2T" Ring 29 may beassembled" and arms 28. with or removed from pattern member 2G,

and handles 30 rigid With`slia'tts'=31toperate to .move clamps 32, theinclined faces of which engage `Withh'eadI 83201? pins VSii VALtertightening ringal29 4against `pattern member 265 The 'surface formedEonftheA sand restfaiidinITignre 2 inivhich the cheeli is shownassembled in the iask. providedI Witlfifan inwardly directed flange 36.The lower surtaces' and 38 rest snugly'- vided Wit-ha knife ITliavinga-projection' 48 for forming the upper face of tlie'sand resting oncheekTheioiver surta'ces'ot knife/17 restsnugly upon-ring 29 and cheek 35.having a pin 52 therein-inserted tliro-ugh an aperturey inlugOfon-rpattern member1 26' to facilitate properfcentering andlpreventtherota'tionfot cheek 35 rwhen strike'- 455is rotated. Afterthe-saiidhas been snit ablypacked onfthev cheek and its upper Atacef has:been iormedbylmife', it may -besub-l jected' to common moldingprocesses,-snch its ready' as baking, it' desired, totacilitateassemblyiviththe drag and cope;Y The foi'- mation ot ythe 'mold inhthedrag: and cope has been described.

The clrag,'cheekf/and cope-are assemble'd,A as shown lin FigureQ, lugs51 on'tlie drag cooperating'with pin 52 'to vcenterthe *cheek properlywith respect to fthedrag. Suitable vents are provided 'torwthepouring'in of the' metal 'into the# mold."V These may bev made- Wlienthecope-vand-'dragf areon the pattern plate.

It is Aapparent that' on ltl'ie'fassembly of theY parts ofthe iiask, the'desired' sliapco'f' mold 10 results. u

I have, therefore, provided an exceedingly simple device. rapidV in itsoperation VAfor making a desired'shapeof mold; No diii'#4` culty isexperienced iniivitlidravvingfpatl tern l-from the sand, and y'theipartsareY readily assembled and castingrof fthe proper shapenecessarily'results'.

Cheek is provided with alug 49' The simplicity of the operationsperformed =on the'cheek is especially apparent, then-mere rotation ofstrike'll giving the desired yupper surface to the sand and theturningot' handles 30 trees ring 29 and permits its removal and thefreeing of cheek 35.

Whilera preferred embodiment ot the in vention has been illustrated anddescribed, itIis-tofbe' understood-'that the present in-V vention is notconiined to such specific em: bodiment,` but may-"befotiierwise"embodiedY Withini Athev spirit of Ethe invent-ion- 1' and the scope* oii. theEflloiving-`- claims,- and it ivill" further bev uiiderstoodth'at asubstantial' rangeffof equivalencef is contemplated.

Iclann: 1.-' In afmlding device',lr theA combinatioi'i ot'- adragfandfacopehaving inner and" outerL member-s, and a cheek adapted'tof bepositi'oned-vbetiveenv saidfcope and'drag, 'sa-id* cheek?hai-finge?. al flange projecting j towards the inner Vmembers of "said-vcope=and *di-aga? 2. In a sheave molding device, the'fcoinbil nation'ofa cope, `a drag, anddaecheekrhavingvl an. Iinwardly? directedfflan'gegf saidi 'fcope" and drag having an inner fand an'ou'ter'pio'r'l/ tion held together by Iinterneediate braces and adapted. toreceive sand 'between said inner andouter 1i'iortions* l and' acrosssaid'inl termediate'fbraces and permit molding i0- saidi sand,f saidIcheek being adapted to Supl port alm'olded Ysand ringfin vcoop'e'rati'vereL lation to thelvmolde'd sand infsaid'icopeand 3. In a molding device,the combinationVVV bearranged in-tlfieiorder recited with one1 restingupon the Yotheigsaid` cope andfdrag having-inner*WallsV ladapted toContact, and

having: outer -Walls'adapted to engagesai'd cheek,A sai'dfchee'k havingan inwardly `l projectingtiange' located Within' [the space beitvve'e'ntheinner vand outeravalls'fot1 said cope anddr'a'g.K

4. A molding device having-a pa'ttferii'l member,f a bracket'revolublj'f mounted'y 'reieti-ve'lyto saidvpattern"member. and-astriker pivote/'d to Vsaid bracket, whereby said striker may' be"rotated'ivitli lsaid'bracket' or' may be'pivotally moved relatively tosaid br'ackenf 5;'AQ' moldingfdevice' havinga pattern member. aringthereon, abracket revoliibly mountedv relativelytoY said pattern member;and a striker pivoted to'said bracket.V \vliereby' Asaid VStriker maylbe' rotated with 'said` bracket or may be vpivotally moved rel'ativelyYIn testimony'thatfI claiin the foregoing I have hereunto set'myliai'i'dati Miiivaukee. inL the" coimty-otfMilivankeeaiid 'State ot WisconsinJen-N: vv. nettesten

